import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class code1 {
    public static long gcd(long a,long b) {
        if(b==0) return a;
        else return gcd(b,a%b);
    }
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();long x = in.nextInt();
        for(int i=0;i<n;i++) {
            int y = in.nextInt();
            if(y<=x) x+=y;
            else x+=gcd(x,y);
        }
        System.out.print(x);
    }
}
